What is a GPS How Do You Use It And What Do You Do With It?
A GPS is a … Electronic instrument to determine a location based on information it receives from satellites Stands for Global Positioning System Is the electronic replacement for compasses in determining location Is the electronic replacement for astronomy in determining location
Various Types of GPSs
The Recreational GPS When powered on will take several minutes to lock onto satellites. These satellites are 11,000 miles in orbit Used to find Longitude and Latitude To map data To make maps To find the car To find a prize But for a variety of reasons
What To Do In Math??? Find distances with or without Excel Find areas Do conversions to switch back and forth between the 3 formats
What To Do History??? Discuss Columbus use of the Tradewinds Research instruments used for locating positions before GPS Trace the route of the Pony Express Trace Lewis and Clarks exploration
Trade Winds miles, in 36 days, in 1492
What To Do Geography Graph countries on an X,Y coordinate Calculate distances between countries, cities, etc. Map cell phone coverage in a small town.
Figuring the Lines of Longitude
Longitude & Latitude of the U.S.
What To Do Locally Map town amenities Create town tours Do puzzle Geocaches to bring about awareness of surroundings
Town of West Blocton Map
The Cahaba River
Bike Tour/Geocach of The Fences of West Blocton
Now That Youre Worldly, You Need To Run The Numbers
Reading A GPS 3 Formats hemisphere degrees, minutes, seconds hemisphere degrees, minutes hemisphere degrees hemisphere degrees, minutes, seconds N W 33 o 07 03N 87 o W hemisphere degrees, minutes N W 33 o N 87 o 07 02W hemisphere degrees N W o N o W
Conversions miles between latitude lines miles between 1 degree of latitude 1.15 miles between minutes.019 miles between seconds; which equals100 feet and 3.5 inches.
However its a Sliding Scale At 38 degrees North latitude one degree of latitude equals approximately 364,000 ft (69 miles), one minute equals 6068 ft (1.15 miles), one-second equals 101 ft. one-degree of longitude equals 288,200 ft (54.6 miles), one minute equals 4800 ft (0.91 mile), and one second equals 80 ft.
I Need You To Cosign Cosine Open the calculator in Windows (Start Programs Accessories Calculator) Click on View & Scientific Choose Decimal and Degrees Type in known latitude in the following format as opposed to ) degrees. degrees ( as opposed to ) Click the Cosine Key (cos) Multiply answer by 69 The answer is the miles between longitudes at that latitude
Mark Way point
Your Assignment Get in groups of 2 Find a Geocache Mark a waypoint Trade units with another team to find that waypoint Give me back my GPSs
Lisa Buck West Blocton High School 4734 Truman Aldrich Parkway West Blocton, AL (205)